I don’t think it’s in the current pipeline - and no i’m definitely not the one to implement it even if it was.
It took a few heads together to come up with that node group, MartinZ and Isscp in particular made some important contributions. I can’t take the credit by any means…
Here is the thread where it was developed in case you are interested in seeing how it evolved (and then branched into looking at different approaches to iridescence too).